johannes hanika (2018-Apr-21, excerpt): > did you at some point adjust the number of worker threads by any > chance?
Not that I'd be aware of. I have
$ grep work ~/.config/darktable/darktablerc
worker_threads=8
Anyplace else?
> there is a surprising amount of different stuff going on that
> all allocates memory.. 8GB isn't all that much in the end.
Well I never see darktable using more than 2GB, so theres like 6GB
left unused.
> among others, the nvidia opencl backend tries to malloc something, too. so i'd
>
> * look through settings for super large number of worker threads somewhere
> * try with `darktable --disable-opencl` to see whether the driver
> needs all the memory
Also segfaults. I'll attach a backtrace as before:
$ gdb --args darktable --disable-opencl
(gdb) set logging on
(gdb) run
(gdb) thread apply all backtrace
The picture is not entirely clear: After trying many times, it
suddenly works. Then I can sometimes recreate the error condition by
selecting one image, copy the history stack (copy all), select 30
images, and paste the history stack (paste all, overwrite).
“Sometimes” as in “this triggers the error, but not always”.
The following is the output from Nvidia's monitoring tool, started
before, and terminated after a crash. To me it does not look like
running out of memory.
$ nvidia-smi dmon
# gpu pwr temp sm mem enc dec mclk pclk
# Idx W C % % % % MHz MHz
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 1 3 0 0 405 139
0 12 45 2 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 1 3 0 0 405 139
0 12 45 3 4 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 43 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 12 45 0 3 0 0 405 139
0 29 45 0 1 0 0 3802 1544
0 29 46 0 0 0 0 3802 1544
0 29 46 10 3 0 0 3802 1544
0 29 46 2 1 0 0 3802 1544
0 29 46 0 0 0 0 3802 1544
0 29 46 0 0 0 0 3802 1544
0 29 46 0 0 0 0 3802 1544
0 29 45 0 0 0 0 3802 1544
0 29 46 0 0 0 0 3802 1544
# gpu pwr temp sm mem enc dec mclk pclk
# Idx W C % % % % MHz MHz
0 29 46 0 0 0 0 3802 1544
0 30 46 0 0 0 0 4006 1544
0 30 46 0 0 0 0 4006 1544
0 26 46 0 0 0 0 4006 911
0 26 46 0 0 0 0 4006 911
0 26 46 0 0 0 0 4006 911
Thanks
Stefan
--
http://stefan-klinger.de o/X
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